Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

What jumps when it walks and sits when it stands?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Do you see only foxes? It’s time for you to unlock the superpowers to find the baby squirrel hidden in the picture.

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

If you say my name, I will no longer exist. What am I?

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.

But do you know how many of these numbers are prime?

If six children and two dogs were under an umbrella, how come none of them got wet?